LPT-4545-xxxLA, LB, LC
Vishay Dale
Inductors/Transformers, Customizable, Surface Mount
Torodial, Kool-Mu®, Powdered Iron and MPP Cores
FEATURES
• Toroidal design for minimal EMI radiation in DC to DC converter applications.
• Designed to support the growing need for efficient DC to DC converters in battery
operated equipment.
• Two separate windings provide versatility by ability to connect windings in series or
parallel.
• Supplied on tape and reel and is designed to be pick and place compatible.
• Custom versions and turns ratios available. Contact the factory with your specifications.
• Half height parts available upon request.
STANDARD ELECTRICAL SPECIFICATIONS [In Parallel]
DIMENSIONS in inches [millimeters]
ACTUAL IND. – µH
DCR
Ω
Pad Layout
MODEL
STANDARD
IND. VALUES
IND. @ IDC
(LBIAS) [30%]
RATED IDC
(40°C )
0.160
[4.06]
®
(LOC) ± 15%
LA=KOOL-MU CORE
0.832
1.30
2.55
3.33
5.20
10.2
15.0
20.8
25.2
32.5
50.0
101
6.90
6.45
5.75
5.50
4.45
3.45
2.79
2.61
2.25
1.85
1.50
1.15
0.92
0.73
0.63
0.60
0.003
0.004
0.006
0.007
0.011
0.019
0.029
0.038
0.048
0.068
0.107
0.195
0.302
0.491
0.670
0.706
1.0
1.5
2.5
3.3
5.0
10
LPT-4545-1R0LA
LPT-4545-1R5LA
LPT-4545-2R5LA
LPT-4545-3R3LA
LPT-4545-5R0LA
LPT-4545-100LA
LPT-4545-150LA
LPT-4545-200LA
LPT-4545-250LA
LPT-4545-330LA
LPT-4545-500LA
LPT-4545-101LA
LPT-4545-151LA
LPT-4545-251LA
LPT-4545-301LA
LPT-4545-331LA
LB=POWDER IRON
LPT-4545-1R0LB
LPT-4545-1R5LB
LPT-4545-2R5LB
LPT-4545-3R3LB
LPT-4545-5R0LB
LPT-4545-100LB
LPT-4545-150LB
LPT-4545-250LB
LPT-4545-330LB
LPT-4545-500LB
LPT-4545-101LB
LPT-4545-151LB
LPT-4545-251LB
LPT-4545-331LB
LC=MPP
0.51 @ 7.62
0.80 @ 6.10
1.57 @ 4.35
2.05 @ 3.81
3.20 @ 3.05
6.28 @ 2.18
9.26 @ 1.79
12.4 @ 1.53
15.5 @ 1.39
20.0 @ 1.22
30.8 @ 0.98
62.0 @ 0.69
93.4 @ 0.56
153.0 @ 0.44
179.0 @ 0.40
205.0 @ 0.38
0.492 sq.
[12.5 sq.]
15
20
0.120
[3.05]
25
33
50
100
150
250
300
330
152
248
300
0.492 sq.
[12.5 sq.]
333
1.0
1.5
2.5
3.3
5.0
10
0.838
1.21
2.71
3.35
5.66
10.9
14.8
26.3
34.3
51.0
105
6.61
6.08
5.01
4.22
3.32
2.52
2.10
1.61
1.34
1.09
0.81
0.66
0.52
0.43
0.53 @ 7.09 0.004
0.76 @ 5.91 0.005
1.71 @ 3.94 0.009
2.11 @ 3.54 0.012
3.57 @ 2.73 0.019
6.84 @ 1.97 0.034
9.31 @ 1.69 0.049
16.5 @ 1.27 0.084
21.6 @ 1.11 0.119
32.1 @ 0.91 0.180
66.2 @ 0.63 0.342
94.7 @ 0.53 0.509
156.0 @ 0.41 0.831
211.0 @ 0.35 1.194
Dimensional Outline
0.462 ± 0.005 Dia.
0.450 ± 0.005 Dia.
[11.43 ± 0.127]
15
[11.73 ± 0.127]
25
33
1
50
100
150
250
330
150
Vishay Dale
LPT-4545-
xxxLX
248
2
4
0.550 [13.97]
Max.
335
0.004
0.004
0.007
0.008
0.012
0.022
0.033
0.054
0.076
0.119
0.219
0.340
0.551
0.788
7.54
6.82
5.84
5.49
4.37
3.32
2.69
2.12
1.76
1.41
1.07
0.86
0.67
0.56
0.54 @ 11.11
0.84 @ 8.89
1.64 @ 6.35
2.14 @ 5.56
3.35 @ 4.45
6.56 @ 3.18
9.68 @ 2.61
16.2 @ 2.02
20.9 @ 1.78
32.2 @ 1.43
64.8 @ 1.01
97.7 @ 0.82
159.0 @ 0.64
214.0 @ 0.56
1.0
1.5
2.5
3.3
5.0
10
0.838
1.30
2.55
3.33
5.20
10.2
15.0
25.2
32.5
50.0
101
LPT-4545-1R0LC
LPT-4545-1R5LC
LPT-4545-2R5LC
LPT-4545-3R3LC
LPT-4545-5R0LC
LPT-4545-100LC
LPT-4545-150LC
LPT-4545-250LC
LPT-4545-330LC
LPT-4545-500LC
LPT-4545-101LC
LPT-4545-151LC
LPT-4545-251LC
LPT-4545-331LC
3
0.250
[6.350]
Max.
15
25
33
50
100
150
250
330
152
248
333
DESCRIPTION
LPT
4545
SIZE
100
INDUCTANCE
VALUE (µH)
± 15%
INDUCTANCE TOLERANCE
LA/LB/LC
CORE/HEIGHT
LA = KOOL-MU®
LB = POWDER IRON
LC = MPP
MODEL
SAP PART NUMBERING GUIDELINES (INTERNAL)
L
P
T
4
5
4
5
R
H
1
0
1
L
K
PACKAGE
CODE
INDUCTANCE
VALUE
CORE
TOL.
PRODUCT FAMILY
See the end of this data book for conversion tables
SIZE
www.vishay.com
112
Document Number 34069
Revision 28-Aug-02
For technical questions, contact Magnetics@vishay.com